GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/mpegvideo.c Lines: 991 1363 72.7 %
Date: 2020-07-13 04:22:34 Branches: 460 822 56.0 %

Line Branch Exec Source
1
/*
2
 * The simplest mpeg encoder (well, it was the simplest!)
3
 * Copyright (c) 2000,2001 Fabrice Bellard
4
 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5
 *
6
 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7
 *
8
 * This file is part of FFmpeg.
9
 *
10
 * FFmpeg is free software; you can redistribute it and/or
11
 * modify it under the terms of the GNU Lesser General Public
12
 * License as published by the Free Software Foundation; either
13
 * version 2.1 of the License, or (at your option) any later version.
14
 *
15
 * FFmpeg is distributed in the hope that it will be useful,
16
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
18
 * Lesser General Public License for more details.
19
 *
20
 * You should have received a copy of the GNU Lesser General Public
21
 * License along with FFmpeg; if not, write to the Free Software
22
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23
 */
24
25
/**
26
 * @file
27
 * The simplest mpeg encoder (well, it was the simplest!).
28
 */
29
30
#include "libavutil/attributes.h"
31
#include "libavutil/avassert.h"
32
#include "libavutil/imgutils.h"
33
#include "libavutil/internal.h"
34
#include "libavutil/motion_vector.h"
35
#include "avcodec.h"
36
#include "blockdsp.h"
37
#include "h264chroma.h"
38
#include "idctdsp.h"
39
#include "internal.h"
40
#include "mathops.h"
41
#include "mpeg_er.h"
42
#include "mpegutils.h"
43
#include "mpegvideo.h"
44
#include "mpegvideodata.h"
45
#include "mjpegenc.h"
46
#include "msmpeg4.h"
47
#include "qpeldsp.h"
48
#include "thread.h"
49
#include "wmv2.h"
50
#include <limits.h>
51
52
126126
static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
53
                                   int16_t *block, int n, int qscale)
54
{
55
    int i, level, nCoeffs;
56
    const uint16_t *quant_matrix;
57
58
126126
    nCoeffs= s->block_last_index[n];
59
60
126126
    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
61
    /* XXX: only MPEG-1 */
62
126126
    quant_matrix = s->intra_matrix;
63
3042075
    for(i=1;i<=nCoeffs;i++) {
64
2915949
        int j= s->intra_scantable.permutated[i];
65
2915949
        level = block[j];
66
2915949
        if (level) {
67
1215436
            if (level < 0) {
68
604537
                level = -level;
69
604537
                level = (int)(level * qscale * quant_matrix[j]) >> 3;
70
604537
                level = (level - 1) | 1;
71
604537
                level = -level;
72
            } else {
73
610899
                level = (int)(level * qscale * quant_matrix[j]) >> 3;
74
610899
                level = (level - 1) | 1;
75
            }
76
1215436
            block[j] = level;
77
        }
78
    }
79
126126
}
80
81
285535
static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
82
                                   int16_t *block, int n, int qscale)
83
{
84
    int i, level, nCoeffs;
85
    const uint16_t *quant_matrix;
86
87
285535
    nCoeffs= s->block_last_index[n];
88
89
285535
    quant_matrix = s->inter_matrix;
90
9502845
    for(i=0; i<=nCoeffs; i++) {
91
9217310
        int j= s->intra_scantable.permutated[i];
92
9217310
        level = block[j];
93
9217310
        if (level) {
94
2101549
            if (level < 0) {
95
1052132
                level = -level;
96
1052132
                level = (((level << 1) + 1) * qscale *
97
1052132
                         ((int) (quant_matrix[j]))) >> 4;
98
1052132
                level = (level - 1) | 1;
99
1052132
                level = -level;
100
            } else {
101
1049417
                level = (((level << 1) + 1) * qscale *
102
1049417
                         ((int) (quant_matrix[j]))) >> 4;
103
1049417
                level = (level - 1) | 1;
104
            }
105
2101549
            block[j] = level;
106
        }
107
    }
108
285535
}
109
110
static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
111
                                   int16_t *block, int n, int qscale)
112
{
113
    int i, level, nCoeffs;
114
    const uint16_t *quant_matrix;
115
116
    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
117
    else                 qscale <<= 1;
118
119
    if(s->alternate_scan) nCoeffs= 63;
120
    else nCoeffs= s->block_last_index[n];
121
122
    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
123
    quant_matrix = s->intra_matrix;
124
    for(i=1;i<=nCoeffs;i++) {
125
        int j= s->intra_scantable.permutated[i];
126
        level = block[j];
127
        if (level) {
128
            if (level < 0) {
129
                level = -level;
130
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
131
                level = -level;
132
            } else {
133
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
134
            }
135
            block[j] = level;
136
        }
137
    }
138
}
139
140
1004864
static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
141
                                   int16_t *block, int n, int qscale)
142
{
143
    int i, level, nCoeffs;
144
    const uint16_t *quant_matrix;
145
1004864
    int sum=-1;
146
147
1004864
    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
148
1004864
    else                 qscale <<= 1;
149
150
1004864
    if(s->alternate_scan) nCoeffs= 63;
151
1004864
    else nCoeffs= s->block_last_index[n];
152
153
1004864
    block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
154
1004864
    sum += block[0];
155
1004864
    quant_matrix = s->intra_matrix;
156
19033337
    for(i=1;i<=nCoeffs;i++) {
157
18028473
        int j= s->intra_scantable.permutated[i];
158
18028473
        level = block[j];
159
18028473
        if (level) {
160
8890498
            if (level < 0) {
161
4472731
                level = -level;
162
4472731
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
163
4472731
                level = -level;
164
            } else {
165
4417767
                level = (int)(level * qscale * quant_matrix[j]) >> 4;
166
            }
167
8890498
            block[j] = level;
168
8890498
            sum+=level;
169
        }
170
    }
171
1004864
    block[63]^=sum&1;
172
1004864
}
173
174
2577120
static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
175
                                   int16_t *block, int n, int qscale)
176
{
177
    int i, level, nCoeffs;
178
    const uint16_t *quant_matrix;
179
2577120
    int sum=-1;
180
181
2577120
    if (s->q_scale_type) qscale = ff_mpeg2_non_linear_qscale[qscale];
182
2577120
    else                 qscale <<= 1;
183
184
2577120
    if(s->alternate_scan) nCoeffs= 63;
185
2577120
    else nCoeffs= s->block_last_index[n];
186
187
2577120
    quant_matrix = s->inter_matrix;
188
65294556
    for(i=0; i<=nCoeffs; i++) {
189
62717436
        int j= s->intra_scantable.permutated[i];
190
62717436
        level = block[j];
191
62717436
        if (level) {
192
22179210
            if (level < 0) {
193
11115371
                level = -level;
194
11115371
                level = (((level << 1) + 1) * qscale *
195
11115371
                         ((int) (quant_matrix[j]))) >> 5;
196
11115371
                level = -level;
197
            } else {
198
11063839
                level = (((level << 1) + 1) * qscale *
199
11063839
                         ((int) (quant_matrix[j]))) >> 5;
200
            }
201
22179210
            block[j] = level;
202
22179210
            sum+=level;
203
        }
204
    }
205
2577120
    block[63]^=sum&1;
206
2577120
}
207
208
3374730
static void dct_unquantize_h263_intra_c(MpegEncContext *s,
209
                                  int16_t *block, int n, int qscale)
210
{
211
    int i, level, qmul, qadd;
212
    int nCoeffs;
213
214
    av_assert2(s->block_last_index[n]>=0 || s->h263_aic);
215
216
3374730
    qmul = qscale << 1;
217
218
3374730
    if (!s->h263_aic) {
219
3201534
        block[0] *= n < 4 ? s->y_dc_scale : s->c_dc_scale;
220
3201534
        qadd = (qscale - 1) | 1;
221
    }else{
222
173196
        qadd = 0;
223
    }
224
3374730
    if(s->ac_pred)
225
68304
        nCoeffs=63;
226
    else
227
3306426
        nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];
228
229
120820136
    for(i=1; i<=nCoeffs; i++) {
230
117445406
        level = block[i];
231
117445406
        if (level) {
232
36048637
            if (level < 0) {
233
18051468
                level = level * qmul - qadd;
234
            } else {
235
17997169
                level = level * qmul + qadd;
236
            }
237
36048637
            block[i] = level;
238
        }
239
    }
240
3374730
}
241
242
6014662
static void dct_unquantize_h263_inter_c(MpegEncContext *s,
243
                                  int16_t *block, int n, int qscale)
244
{
245
    int i, level, qmul, qadd;
246
    int nCoeffs;
247
248
    av_assert2(s->block_last_index[n]>=0);
249
250
6014662
    qadd = (qscale - 1) | 1;
251
6014662
    qmul = qscale << 1;
252
253
6014662
    nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
254
255
235641304
    for(i=0; i<=nCoeffs; i++) {
256
229626642
        level = block[i];
257
229626642
        if (level) {
258
48213622
            if (level < 0) {
259
24027915
                level = level * qmul - qadd;
260
            } else {
261
24185707
                level = level * qmul + qadd;
262
            }
263
48213622
            block[i] = level;
264
        }
265
    }
266
6014662
}
267
268
269
static void gray16(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
270
{
271
    while(h--)
272
        memset(dst + h*linesize, 128, 16);
273
}
274
275
static void gray8(uint8_t *dst, const uint8_t *src, ptrdiff_t linesize, int h)
276
{
277
    while(h--)
278
        memset(dst + h*linesize, 128, 8);
279
}
280
281
/* init common dct for both encoder and decoder */
282
750
static av_cold int dct_init(MpegEncContext *s)
283
{
284
750
    ff_blockdsp_init(&s->bdsp, s->avctx);
285
750
    ff_h264chroma_init(&s->h264chroma, 8); //for lowres
286
750
    ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
287
750
    ff_mpegvideodsp_init(&s->mdsp);
288
750
    ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
289
290
750
    if (s->avctx->debug & FF_DEBUG_NOMC) {
291
        int i;
292
        for (i=0; i<4; i++) {
293
            s->hdsp.avg_pixels_tab[0][i] = gray16;
294
            s->hdsp.put_pixels_tab[0][i] = gray16;
295
            s->hdsp.put_no_rnd_pixels_tab[0][i] = gray16;
296
297
            s->hdsp.avg_pixels_tab[1][i] = gray8;
298
            s->hdsp.put_pixels_tab[1][i] = gray8;
299
            s->hdsp.put_no_rnd_pixels_tab[1][i] = gray8;
300
        }
301
    }
302
303
750
    s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
304
750
    s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
305
750
    s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
306
750
    s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
307
750
    s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
308
750
    if (s->avctx->flags & AV_CODEC_FLAG_BITEXACT)
309
543
        s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
310
750
    s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
311
312
    if (HAVE_INTRINSICS_NEON)
313
        ff_mpv_common_init_neon(s);
314
315
    if (ARCH_ALPHA)
316
        ff_mpv_common_init_axp(s);
317
    if (ARCH_ARM)
318
        ff_mpv_common_init_arm(s);
319
    if (ARCH_PPC)
320
        ff_mpv_common_init_ppc(s);
321
    if (ARCH_X86)
322
750
        ff_mpv_common_init_x86(s);
323
    if (ARCH_MIPS)
324
        ff_mpv_common_init_mips(s);
325
326
750
    return 0;
327
}
328
329
1077
av_cold void ff_mpv_idct_init(MpegEncContext *s)
330
{
331
1077
    if (s->codec_id == AV_CODEC_ID_MPEG4)
332
225
        s->idsp.mpeg4_studio_profile = s->studio_profile;
333
1077
    ff_idctdsp_init(&s->idsp, s->avctx);
334
335
    /* load & permutate scantables
336
     * note: only wmv uses different ones
337
     */
338
1077
    if (s->alternate_scan) {
339
        ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_alternate_vertical_scan);
340
        ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_alternate_vertical_scan);
341
    } else {
342
1077
        ff_init_scantable(s->idsp.idct_permutation, &s->inter_scantable, ff_zigzag_direct);
343
1077
        ff_init_scantable(s->idsp.idct_permutation, &s->intra_scantable, ff_zigzag_direct);
344
    }
345
1077
    ff_init_scantable(s->idsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
346
1077
    ff_init_scantable(s->idsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
347
1077
}
348
349
10850
static int alloc_picture(MpegEncContext *s, Picture *pic)
350
{
351
21700
    return ff_alloc_picture(s->avctx, pic, &s->me, &s->sc, 0, 0,
352
10850
                            s->chroma_x_shift, s->chroma_y_shift, s->out_format,
353
                            s->mb_stride, s->mb_width, s->mb_height, s->b8_stride,
354
                            &s->linesize, &s->uvlinesize);
355
}
356
357
824
static int init_duplicate_context(MpegEncContext *s)
358
{
359
824
    int y_size = s->b8_stride * (2 * s->mb_height + 1);
360
824
    int c_size = s->mb_stride * (s->mb_height + 1);
361
824
    int yc_size = y_size + 2 * c_size;
362
    int i;
363
364
824
    if (s->mb_height & 1)
365
144
        yc_size += 2*s->b8_stride + 2*s->mb_stride;
366
367
824
    s->sc.edge_emu_buffer =
368
824
    s->me.scratchpad   =
369
824
    s->me.temp         =
370
824
    s->sc.rd_scratchpad   =
371
824
    s->sc.b_scratchpad    =
372
824
    s->sc.obmc_scratchpad = NULL;
373
374
824
    if (s->encoding) {
375
194
        if (!FF_ALLOCZ_TYPED_ARRAY(s->me.map,       ME_MAP_SIZE) ||
376
194
            !FF_ALLOCZ_TYPED_ARRAY(s->me.score_map, ME_MAP_SIZE))
377
            return AVERROR(ENOMEM);
378
379
194
        if (s->noise_reduction) {
380
4
            if (!FF_ALLOCZ_TYPED_ARRAY(s->dct_error_sum,  2))
381
                return AVERROR(ENOMEM);
382
        }
383
    }
384
824
    if (!FF_ALLOCZ_TYPED_ARRAY(s->blocks,  2))
385
        return AVERROR(ENOMEM);
386
824
    s->block = s->blocks[0];
387
388
10712
    for (i = 0; i < 12; i++) {
389
9888
        s->pblocks[i] = &s->block[i];
390
    }
391
392
824
    if (!(s->block32         = av_mallocz(sizeof(*s->block32))) ||
393
824
        !(s->dpcm_macroblock = av_mallocz(sizeof(*s->dpcm_macroblock))))
394
        return AVERROR(ENOMEM);
395
824
    s->dpcm_direction = 0;
396
397
824
    if (s->avctx->codec_tag == AV_RL32("VCR2")) {
398
        // exchange uv
399
4
        FFSWAP(void *, s->pblocks[4], s->pblocks[5]);
400
    }
401
402
824
    if (s->out_format == FMT_H263) {
403
        /* ac values */
404
457
        if (!FF_ALLOCZ_TYPED_ARRAY(s->ac_val_base,  yc_size))
405
            return AVERROR(ENOMEM);
406
457
        s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
407
457
        s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
408
457
        s->ac_val[2] = s->ac_val[1] + c_size;
409
    }
410
411
824
    return 0;
412
}
413
414
858
static void free_duplicate_context(MpegEncContext *s)
415
{
416
858
    if (!s)
417
        return;
418
419
858
    av_freep(&s->sc.edge_emu_buffer);
420
858
    av_freep(&s->me.scratchpad);
421
858
    s->me.temp =
422
858
    s->sc.rd_scratchpad =
423
858
    s->sc.b_scratchpad =
424
858
    s->sc.obmc_scratchpad = NULL;
425
426
858
    av_freep(&s->dct_error_sum);
427
858
    av_freep(&s->me.map);
428
858
    av_freep(&s->me.score_map);
429
858
    av_freep(&s->blocks);
430
858
    av_freep(&s->block32);
431
858
    av_freep(&s->dpcm_macroblock);
432
858
    av_freep(&s->ac_val_base);
433
858
    s->block = NULL;
434
}
435
436
8752
static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
437
{
438
#define COPY(a) bak->a = src->a
439
8752
    COPY(sc.edge_emu_buffer);
440
8752
    COPY(me.scratchpad);
441
8752
    COPY(me.temp);
442
8752
    COPY(sc.rd_scratchpad);
443
8752
    COPY(sc.b_scratchpad);
444
8752
    COPY(sc.obmc_scratchpad);
445
8752
    COPY(me.map);
446
8752
    COPY(me.score_map);
447
8752
    COPY(blocks);
448
8752
    COPY(block);
449
8752
    COPY(block32);
450
8752
    COPY(dpcm_macroblock);
451
8752
    COPY(dpcm_direction);
452
8752
    COPY(start_mb_y);
453
8752
    COPY(end_mb_y);
454
8752
    COPY(me.map_generation);
455
8752
    COPY(pb);
456
8752
    COPY(dct_error_sum);
457
8752
    COPY(dct_count[0]);
458
8752
    COPY(dct_count[1]);
459
8752
    COPY(ac_val_base);
460
8752
    COPY(ac_val[0]);
461
8752
    COPY(ac_val[1]);
462
8752
    COPY(ac_val[2]);
463
#undef COPY
464
8752
}
465
466
4376
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
467
{
468
    MpegEncContext bak;
469
    int i, ret;
470
    // FIXME copy only needed parts
471
4376
    backup_duplicate_context(&bak, dst);
472
4376
    memcpy(dst, src, sizeof(MpegEncContext));
473
4376
    backup_duplicate_context(dst, &bak);
474
56888
    for (i = 0; i < 12; i++) {
475
52512
        dst->pblocks[i] = &dst->block[i];
476
    }
477
4376
    if (dst->avctx->codec_tag == AV_RL32("VCR2")) {
478
        // exchange uv
479
        FFSWAP(void *, dst->pblocks[4], dst->pblocks[5]);
480
    }
481

4412
    if (!dst->sc.edge_emu_buffer &&
482
36
        (ret = ff_mpeg_framesize_alloc(dst->avctx, &dst->me,
483
36
                                       &dst->sc, dst->linesize)) < 0) {
484
        av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
485
               "scratch buffers.\n");
486
        return ret;
487
    }
488
4376
    return 0;
489
}
490
491
int ff_mpeg_update_thread_context(AVCodecContext *dst,
492
                                  const AVCodecContext *src)
493
{
494
    int i, ret;
495
    MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
496
497
    if (dst == src)
498
        return 0;
499
500
    av_assert0(s != s1);
501
502
    // FIXME can parameters change on I-frames?
503
    // in that case dst may need a reinit
504
    if (!s->context_initialized) {
505
        int err;
506
        memcpy(s, s1, sizeof(MpegEncContext));
507
508
        s->avctx                 = dst;
509
        s->bitstream_buffer      = NULL;
510
        s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
511
512
        if (s1->context_initialized){
513
//             s->picture_range_start  += MAX_PICTURE_COUNT;
514
//             s->picture_range_end    += MAX_PICTURE_COUNT;
515
            ff_mpv_idct_init(s);
516
            if((err = ff_mpv_common_init(s)) < 0){
517
                memset(s, 0, sizeof(MpegEncContext));
518
                s->avctx = dst;
519
                return err;
520
            }
521
        }
522
    }
523
524
    if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
525
        s->context_reinit = 0;
526
        s->height = s1->height;
527
        s->width  = s1->width;
528
        if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
529
            return ret;
530
    }
531
532
    s->avctx->coded_height  = s1->avctx->coded_height;
533
    s->avctx->coded_width   = s1->avctx->coded_width;
534
    s->avctx->width         = s1->avctx->width;
535
    s->avctx->height        = s1->avctx->height;
536
537
    s->quarter_sample       = s1->quarter_sample;
538
539
    s->coded_picture_number = s1->coded_picture_number;
540
    s->picture_number       = s1->picture_number;
541
542
    av_assert0(!s->picture || s->picture != s1->picture);
543
    if(s->picture)
544
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
545
        ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
546
        if (s1->picture && s1->picture[i].f->buf[0] &&
547
            (ret = ff_mpeg_ref_picture(s->avctx, &s->picture[i], &s1->picture[i])) < 0)
548
            return ret;
549
    }
550
551
#define UPDATE_PICTURE(pic)\
552
do {\
553
    ff_mpeg_unref_picture(s->avctx, &s->pic);\
554
    if (s1->pic.f && s1->pic.f->buf[0])\
555
        ret = ff_mpeg_ref_picture(s->avctx, &s->pic, &s1->pic);\
556
    else\
557
        ret = ff_update_picture_tables(&s->pic, &s1->pic);\
558
    if (ret < 0)\
559
        return ret;\
560
} while (0)
561
562
    UPDATE_PICTURE(current_picture);
563
    UPDATE_PICTURE(last_picture);
564
    UPDATE_PICTURE(next_picture);
565
566
#define REBASE_PICTURE(pic, new_ctx, old_ctx)                                 \
567
    ((pic && pic >= old_ctx->picture &&                                       \
568
      pic < old_ctx->picture + MAX_PICTURE_COUNT) ?                           \
569
        &new_ctx->picture[pic - old_ctx->picture] : NULL)
570
571
    s->last_picture_ptr    = REBASE_PICTURE(s1->last_picture_ptr,    s, s1);
572
    s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
573
    s->next_picture_ptr    = REBASE_PICTURE(s1->next_picture_ptr,    s, s1);
574
575
    // Error/bug resilience
576
    s->next_p_frame_damaged = s1->next_p_frame_damaged;
577
    s->workaround_bugs      = s1->workaround_bugs;
578
    s->padding_bug_score    = s1->padding_bug_score;
579
580
    // MPEG-4 timing info
581
    memcpy(&s->last_time_base, &s1->last_time_base,
582
           (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
583
           (char *) &s1->last_time_base);
584
585
    // B-frame info
586
    s->max_b_frames = s1->max_b_frames;
587
    s->low_delay    = s1->low_delay;
588
    s->droppable    = s1->droppable;
589
590
    // DivX handling (doesn't work)
591
    s->divx_packed  = s1->divx_packed;
592
593
    if (s1->bitstream_buffer) {
594
        if (s1->bitstream_buffer_size +
595
            AV_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) {
596
            av_fast_malloc(&s->bitstream_buffer,
597
                           &s->allocated_bitstream_buffer_size,
598
                           s1->allocated_bitstream_buffer_size);
599
            if (!s->bitstream_buffer) {
600
                s->bitstream_buffer_size = 0;
601
                return AVERROR(ENOMEM);
602
            }
603
        }
604
        s->bitstream_buffer_size = s1->bitstream_buffer_size;
605
        memcpy(s->bitstream_buffer, s1->bitstream_buffer,
606
               s1->bitstream_buffer_size);
607
        memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
608
               AV_INPUT_BUFFER_PADDING_SIZE);
609
    }
610
611
    // linesize-dependent scratch buffer allocation
612
    if (!s->sc.edge_emu_buffer)
613
        if (s1->linesize) {
614
            if (ff_mpeg_framesize_alloc(s->avctx, &s->me,
615
                                        &s->sc, s1->linesize) < 0) {
616
                av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
617
                       "scratch buffers.\n");
618
                return AVERROR(ENOMEM);
619
            }
620
        } else {
621
            av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
622
                   "be allocated due to unknown size.\n");
623
        }
624
625
    // MPEG-2/interlacing info
626
    memcpy(&s->progressive_sequence, &s1->progressive_sequence,
627
           (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
628
629
    if (!s1->first_field) {
630
        s->last_pict_type = s1->pict_type;
631
        if (s1->current_picture_ptr)
632
            s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality;
633
    }
634
635
    return 0;
636
}
637
638
/**
639
 * Set the given MpegEncContext to common defaults
640
 * (same for encoding and decoding).
641
 * The changed fields will not depend upon the
642
 * prior state of the MpegEncContext.
643
 */
644
766
void ff_mpv_common_defaults(MpegEncContext *s)
645
{
646
766
    s->y_dc_scale_table      =
647
766
    s->c_dc_scale_table      = ff_mpeg1_dc_scale_table;
648
766
    s->chroma_qscale_table   = ff_default_chroma_qscale_table;
649
766
    s->progressive_frame     = 1;
650
766
    s->progressive_sequence  = 1;
651
766
    s->picture_structure     = PICT_FRAME;
652
653
766
    s->coded_picture_number  = 0;
654
766
    s->picture_number        = 0;
655
656
766
    s->f_code                = 1;
657
766
    s->b_code                = 1;
658
659
766
    s->slice_context_count   = 1;
660
766
}
661
662
/**
663
 * Set the given MpegEncContext to defaults for decoding.
664
 * the changed fields will not depend upon
665
 * the prior state of the MpegEncContext.
666
 */
667
584
void ff_mpv_decode_defaults(MpegEncContext *s)
668
{
669
584
    ff_mpv_common_defaults(s);
670
584
}
671
672
584
void ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
673
{
674
584
    s->avctx           = avctx;
675
584
    s->width           = avctx->coded_width;
676
584
    s->height          = avctx->coded_height;
677
584
    s->codec_id        = avctx->codec->id;
678
584
    s->workaround_bugs = avctx->workaround_bugs;
679
680
    /* convert fourcc to upper case */
681
584
    s->codec_tag          = avpriv_toupper4(avctx->codec_tag);
682
584
}
683
684
/**
685
 * Initialize and allocates MpegEncContext fields dependent on the resolution.
686
 */
687
788
static int init_context_frame(MpegEncContext *s)
688
{
689
    int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
690
691
788
    s->mb_width   = (s->width + 15) / 16;
692
788
    s->mb_stride  = s->mb_width + 1;
693
788
    s->b8_stride  = s->mb_width * 2 + 1;
694
788
    mb_array_size = s->mb_height * s->mb_stride;
695
788
    mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
696
697
    /* set default edge pos, will be overridden
698
     * in decode_header if needed */
699
788
    s->h_edge_pos = s->mb_width * 16;
700
788
    s->v_edge_pos = s->mb_height * 16;
701
702
788
    s->mb_num     = s->mb_width * s->mb_height;
703
704
788
    s->block_wrap[0] =
705
788
    s->block_wrap[1] =
706
788
    s->block_wrap[2] =
707
788
    s->block_wrap[3] = s->b8_stride;
708
788
    s->block_wrap[4] =
709
788
    s->block_wrap[5] = s->mb_stride;
710
711
788
    y_size  = s->b8_stride * (2 * s->mb_height + 1);
712
788
    c_size  = s->mb_stride * (s->mb_height + 1);
713
788
    yc_size = y_size + 2   * c_size;
714
715
788
    if (s->mb_height & 1)
716
143
        yc_size += 2*s->b8_stride + 2*s->mb_stride;
717
718
788
    if (!FF_ALLOCZ_TYPED_ARRAY(s->mb_index2xy, s->mb_num + 1))
719
        return AVERROR(ENOMEM);
720
15297
    for (y = 0; y < s->mb_height; y++)
721
449652
        for (x = 0; x < s->mb_width; x++)
722
435143
            s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
723
724
788
    s->mb_index2xy[s->mb_height * s->mb_width] = (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
725
726
788
    if (s->encoding) {
727
        /* Allocate MV tables */
728
182
        if (!FF_ALLOCZ_TYPED_ARRAY(s->p_mv_table_base,            mv_table_size) ||
729
182
            !FF_ALLOCZ_TYPED_ARRAY(s->b_forw_mv_table_base,       mv_table_size) ||
730
182
            !FF_ALLOCZ_TYPED_ARRAY(s->b_back_mv_table_base,       mv_table_size) ||
731
182
            !FF_ALLOCZ_TYPED_ARRAY(s->b_bidir_forw_mv_table_base, mv_table_size) ||
732
182
            !FF_ALLOCZ_TYPED_ARRAY(s->b_bidir_back_mv_table_base, mv_table_size) ||
733
182
            !FF_ALLOCZ_TYPED_ARRAY(s->b_direct_mv_table_base,     mv_table_size))
734
            return AVERROR(ENOMEM);
735
182
        s->p_mv_table            = s->p_mv_table_base + s->mb_stride + 1;
736
182
        s->b_forw_mv_table       = s->b_forw_mv_table_base + s->mb_stride + 1;
737
182
        s->b_back_mv_table       = s->b_back_mv_table_base + s->mb_stride + 1;
738
182
        s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base + s->mb_stride + 1;
739
182
        s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base + s->mb_stride + 1;
740
182
        s->b_direct_mv_table     = s->b_direct_mv_table_base + s->mb_stride + 1;
741
742
        /* Allocate MB type table */
743
182
        if (!FF_ALLOCZ_TYPED_ARRAY(s->mb_type,      mb_array_size) ||
744
182
            !FF_ALLOCZ_TYPED_ARRAY(s->lambda_table, mb_array_size) ||
745
182
            !FF_ALLOC_TYPED_ARRAY (s->cplx_tab,     mb_array_size) ||
746
182
            !FF_ALLOC_TYPED_ARRAY (s->bits_tab,     mb_array_size))
747
            return AVERROR(ENOMEM);
748
    }
749
750
788
    if (s->codec_id == AV_CODEC_ID_MPEG4 ||
751
540
        (s->avctx->flags & AV_CODEC_FLAG_INTERLACED_ME)) {
752
        /* interlaced direct mode decoding tables */
753
792
        for (i = 0; i < 2; i++) {
754
            int j, k;
755
1584
            for (j = 0; j < 2; j++) {
756
3168
                for (k = 0; k < 2; k++) {
757
2112
                    if (!FF_ALLOCZ_TYPED_ARRAY(s->b_field_mv_table_base[i][j][k], mv_table_size))
758
                        return AVERROR(ENOMEM);
759
2112
                    s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
760
2112
                                                   s->mb_stride + 1;
761
                }
762
1056
                if (!FF_ALLOCZ_TYPED_ARRAY(s->b_field_select_table [i][j], mv_table_size * 2) ||
763
1056
                    !FF_ALLOCZ_TYPED_ARRAY(s->p_field_mv_table_base[i][j], mv_table_size))
764
                    return AVERROR(ENOMEM);
765
1056
                s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j] + s->mb_stride + 1;
766
            }
767
528
            if (!FF_ALLOCZ_TYPED_ARRAY(s->p_field_select_table[i], mv_table_size * 2))
768
                return AVERROR(ENOMEM);
769
        }
770
    }
771
788
    if (s->out_format == FMT_H263) {
772
        /* cbp values, cbp, ac_pred, pred_dir */
773
453
        if (!FF_ALLOCZ_TYPED_ARRAY(s->coded_block_base, y_size + (s->mb_height&1)*2*s->b8_stride) ||
774
453
            !FF_ALLOCZ_TYPED_ARRAY(s->cbp_table,        mb_array_size)                            ||
775
453
            !FF_ALLOCZ_TYPED_ARRAY(s->pred_dir_table,   mb_array_size))
776
            return AVERROR(ENOMEM);
777
453
        s->coded_block = s->coded_block_base + s->b8_stride + 1;
778
    }
779
780

788
    if (s->h263_pred || s->h263_plus || !s->encoding) {
781
        /* dc values */
782
        // MN: we need these for error resilience of intra-frames
783
687
        if (!FF_ALLOCZ_TYPED_ARRAY(s->dc_val_base, yc_size))
784
            return AVERROR(ENOMEM);
785
687
        s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
786
687
        s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
787
687
        s->dc_val[2] = s->dc_val[1] + c_size;
788
2515548
        for (i = 0; i < yc_size; i++)
789
2514861
            s->dc_val_base[i] = 1024;
790
    }
791
792
    /* which mb is an intra block,  init macroblock skip table */
793
788
    if (!FF_ALLOCZ_TYPED_ARRAY(s->mbintra_table, mb_array_size) ||
794
        // Note the + 1 is for a quicker MPEG-4 slice_end detection
795
788
        !FF_ALLOCZ_TYPED_ARRAY(s->mbskip_table,  mb_array_size + 2))
796
        return AVERROR(ENOMEM);
797
788
    memset(s->mbintra_table, 1, mb_array_size);
798
799
788
    return ff_mpeg_er_init(s);
800
}
801
802
750
static void clear_context(MpegEncContext *s)
803
{
804
    int i, j, k;
805
806
750
    memset(&s->next_picture, 0, sizeof(s->next_picture));
807
750
    memset(&s->last_picture, 0, sizeof(s->last_picture));
808
750
    memset(&s->current_picture, 0, sizeof(s->current_picture));
809
750
    memset(&s->new_picture, 0, sizeof(s->new_picture));
810
811
750
    memset(s->thread_context, 0, sizeof(s->thread_context));
812
813
750
    s->me.map = NULL;
814
750
    s->me.score_map = NULL;
815
750
    s->dct_error_sum = NULL;
816
750
    s->block = NULL;
817
750
    s->blocks = NULL;
818
750
    s->block32 = NULL;
819
750
    memset(s->pblocks, 0, sizeof(s->pblocks));
820
750
    s->dpcm_direction = 0;
821
750
    s->dpcm_macroblock = NULL;
822
750
    s->ac_val_base = NULL;
823
750
    s->ac_val[0] =
824
750
    s->ac_val[1] =
825
750
    s->ac_val[2] =NULL;
826
750
    s->sc.edge_emu_buffer = NULL;
827
750
    s->me.scratchpad = NULL;
828
750
    s->me.temp =
829
750
    s->sc.rd_scratchpad =
830
750
    s->sc.b_scratchpad =
831
750
    s->sc.obmc_scratchpad = NULL;
832
833
834
750
    s->bitstream_buffer = NULL;
835
750
    s->allocated_bitstream_buffer_size = 0;
836
750
    s->picture          = NULL;
837
750
    s->mb_type          = NULL;
838
750
    s->p_mv_table_base  = NULL;
839
750
    s->b_forw_mv_table_base = NULL;
840
750
    s->b_back_mv_table_base = NULL;
841
750
    s->b_bidir_forw_mv_table_base = NULL;
842
750
    s->b_bidir_back_mv_table_base = NULL;
843
750
    s->b_direct_mv_table_base = NULL;
844
750
    s->p_mv_table            = NULL;
845
750
    s->b_forw_mv_table       = NULL;
846
750
    s->b_back_mv_table       = NULL;
847
750
    s->b_bidir_forw_mv_table = NULL;
848
750
    s->b_bidir_back_mv_table = NULL;
849
750
    s->b_direct_mv_table     = NULL;
850
2250
    for (i = 0; i < 2; i++) {
851
4500
        for (j = 0; j < 2; j++) {
852
9000
            for (k = 0; k < 2; k++) {
853
6000
                s->b_field_mv_table_base[i][j][k] = NULL;
854
6000
                s->b_field_mv_table[i][j][k] = NULL;
855
            }
856
3000
            s->b_field_select_table[i][j] = NULL;
857
3000
            s->p_field_mv_table_base[i][j] = NULL;
858
3000
            s->p_field_mv_table[i][j] = NULL;
859
        }
860
1500
        s->p_field_select_table[i] = NULL;
861
    }
862
863
750
    s->dc_val_base = NULL;
864
750
    s->coded_block_base = NULL;
865
750
    s->mbintra_table = NULL;
866
750
    s->cbp_table = NULL;
867
750
    s->pred_dir_table = NULL;
868
869
750
    s->mbskip_table = NULL;
870
871
750
    s->er.error_status_table = NULL;
872
750
    s->er.er_temp_buffer = NULL;
873
750
    s->mb_index2xy = NULL;
874
750
    s->lambda_table = NULL;
875
876
750
    s->cplx_tab = NULL;
877
750
    s->bits_tab = NULL;
878
750
}
879
880
/**
881
 * init common structure for both encoder and decoder.
882
 * this assumes that some variables like width/height are already set
883
 */
884
750
av_cold int ff_mpv_common_init(MpegEncContext *s)
885
{
886
    int i, ret;
887
750
    int nb_slices = (HAVE_THREADS &&
888
750
                     s->avctx->active_thread_type & FF_THREAD_SLICE) ?
889
750
                    s->avctx->thread_count : 1;
890
891
750
    clear_context(s);
892
893

750
    if (s->encoding && s->avctx->slices)
894
12
        nb_slices = s->avctx->slices;
895
896

750
    if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
897
129
        s->mb_height = (s->height + 31) / 32 * 2;
898
    else
899
621
        s->mb_height = (s->height + 15) / 16;
900
901
750
    if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
902
        av_log(s->avctx, AV_LOG_ERROR,
903
               "decoding to AV_PIX_FMT_NONE is not supported.\n");
904
        return AVERROR(EINVAL);
905
    }
906
907

750
    if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
908
        int max_slices;
909
        if (s->mb_height)
910
            max_slices = FFMIN(MAX_THREADS, s->mb_height);
911
        else
912
            max_slices = MAX_THREADS;
913
        av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
914
               " reducing to %d\n", nb_slices, max_slices);
915
        nb_slices = max_slices;
916
    }
917
918

1485
    if ((s->width || s->height) &&
919
735
        av_image_check_size(s->width, s->height, 0, s->avctx))
920
        return AVERROR(EINVAL);
921
922
750
    dct_init(s);
923
924
    /* set chroma shifts */
925
750
    ret = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
926
                                           &s->chroma_x_shift,
927
                                           &s->chroma_y_shift);
928
750
    if (ret)
929
        return ret;
930
931
750
    if (!FF_ALLOCZ_TYPED_ARRAY(s->picture, MAX_PICTURE_COUNT))
932
        return AVERROR(ENOMEM);
933
27750
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
934
27000
        s->picture[i].f = av_frame_alloc();
935
27000
        if (!s->picture[i].f)
936
            return AVERROR(ENOMEM);
937
    }
938
939
750
    if (!(s->next_picture.f    = av_frame_alloc()) ||
940
750
        !(s->last_picture.f    = av_frame_alloc()) ||
941
750
        !(s->current_picture.f = av_frame_alloc()) ||
942
750
        !(s->new_picture.f     = av_frame_alloc()))
943
        return AVERROR(ENOMEM);
944
945
750
    if ((ret = init_context_frame(s)))
946
        return AVERROR(ENOMEM);
947
948
750
    s->parse_context.state = -1;
949
950
750
    s->context_initialized = 1;
951
750
    memset(s->thread_context, 0, sizeof(s->thread_context));
952
750
    s->thread_context[0]   = s;
953
954
//     if (s->width && s->height) {
955
750
    if (nb_slices > 1) {
956
66
        for (i = 0; i < nb_slices; i++) {
957
51
            if (i) {
958
36
                s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
959
36
                if (!s->thread_context[i])
960
                    return AVERROR(ENOMEM);
961
            }
962
51
            if ((ret = init_duplicate_context(s->thread_context[i])) < 0)
963
                return ret;
964
51
            s->thread_context[i]->start_mb_y =
965
51
                (s->mb_height * (i) + nb_slices / 2) / nb_slices;
966
51
            s->thread_context[i]->end_mb_y   =
967
51
                (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
968
        }
969
    } else {
970
735
        if ((ret = init_duplicate_context(s)) < 0)
971
            return ret;
972
735
        s->start_mb_y = 0;
973
735
        s->end_mb_y   = s->mb_height;
974
    }
975
750
    s->slice_context_count = nb_slices;
976
//     }
977
978
750
    return 0;
979
}
980
981
/**
982
 * Frees and resets MpegEncContext fields depending on the resolution.
983
 * Is used during resolution changes to avoid a full reinitialization of the
984
 * codec.
985
 */
986
822
static void free_context_frame(MpegEncContext *s)
987
{
988
    int i, j, k;
989
990
822
    av_freep(&s->mb_type);
991
822
    av_freep(&s->p_mv_table_base);
992
822
    av_freep(&s->b_forw_mv_table_base);
993
822
    av_freep(&s->b_back_mv_table_base);
994
822
    av_freep(&s->b_bidir_forw_mv_table_base);
995
822
    av_freep(&s->b_bidir_back_mv_table_base);
996
822
    av_freep(&s->b_direct_mv_table_base);
997
822
    s->p_mv_table            = NULL;
998
822
    s->b_forw_mv_table       = NULL;
999
822
    s->b_back_mv_table       = NULL;
1000
822
    s->b_bidir_forw_mv_table = NULL;
1001
822
    s->b_bidir_back_mv_table = NULL;
1002
822
    s->b_direct_mv_table     = NULL;
1003
2466
    for (i = 0; i < 2; i++) {
1004
4932
        for (j = 0; j < 2; j++) {
1005
9864
            for (k = 0; k < 2; k++) {
1006
6576
                av_freep(&s->b_field_mv_table_base[i][j][k]);
1007
6576
                s->b_field_mv_table[i][j][k] = NULL;
1008
            }
1009
3288
            av_freep(&s->b_field_select_table[i][j]);
1010
3288
            av_freep(&s->p_field_mv_table_base[i][j]);
1011
3288
            s->p_field_mv_table[i][j] = NULL;
1012
        }
1013
1644
        av_freep(&s->p_field_select_table[i]);
1014
    }
1015
1016
822
    av_freep(&s->dc_val_base);
1017
822
    av_freep(&s->coded_block_base);
1018
822
    av_freep(&s->mbintra_table);
1019
822
    av_freep(&s->cbp_table);
1020
822
    av_freep(&s->pred_dir_table);
1021
1022
822
    av_freep(&s->mbskip_table);
1023
1024
822
    av_freep(&s->er.error_status_table);
1025
822
    av_freep(&s->er.er_temp_buffer);
1026
822
    av_freep(&s->mb_index2xy);
1027
822
    av_freep(&s->lambda_table);
1028
1029
822
    av_freep(&s->cplx_tab);
1030
822
    av_freep(&s->bits_tab);
1031
1032
822
    s->linesize = s->uvlinesize = 0;
1033
822
}
1034
1035
38
int ff_mpv_common_frame_size_change(MpegEncContext *s)
1036
{
1037
38
    int i, err = 0;
1038
1039
38
    if (!s->context_initialized)
1040
        return AVERROR(EINVAL);
1041
1042
38
    if (s->slice_context_count > 1) {
1043
        for (i = 0; i < s->slice_context_count; i++) {
1044
            free_duplicate_context(s->thread_context[i]);
1045
        }
1046
        for (i = 1; i < s->slice_context_count; i++) {
1047
            av_freep(&s->thread_context[i]);
1048
        }
1049
    } else
1050
38
        free_duplicate_context(s);
1051
1052
38
    free_context_frame(s);
1053
1054
38
    if (s->picture)
1055
1406
        for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1056
1368
                s->picture[i].needs_realloc = 1;
1057
        }
1058
1059
38
    s->last_picture_ptr         =
1060
38
    s->next_picture_ptr         =
1061
38
    s->current_picture_ptr      = NULL;
1062
1063
    // init
1064

38
    if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1065
        s->mb_height = (s->height + 31) / 32 * 2;
1066
    else
1067
38
        s->mb_height = (s->height + 15) / 16;
1068
1069

76
    if ((s->width || s->height) &&
1070
38
        (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
1071
        return err;
1072
1073
38
    if ((err = init_context_frame(s)))
1074
        return err;
1075
1076
38
    memset(s->thread_context, 0, sizeof(s->thread_context));
1077
38
    s->thread_context[0]   = s;
1078
1079

38
    if (s->width && s->height) {
1080
38
        int nb_slices = s->slice_context_count;
1081
38
        if (nb_slices > 1) {
1082
            for (i = 0; i < nb_slices; i++) {
1083
                if (i) {
1084
                    s->thread_context[i] = av_memdup(s, sizeof(MpegEncContext));
1085
                    if (!s->thread_context[i]) {
1086
                        return AVERROR(ENOMEM);
1087
                    }
1088
                }
1089
                if ((err = init_duplicate_context(s->thread_context[i])) < 0)
1090
                    return err;
1091
                s->thread_context[i]->start_mb_y =
1092
                    (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1093
                s->thread_context[i]->end_mb_y   =
1094
                    (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1095
            }
1096
        } else {
1097
38
            err = init_duplicate_context(s);
1098
38
            if (err < 0)
1099
                return err;
1100
38
            s->start_mb_y = 0;
1101
38
            s->end_mb_y   = s->mb_height;
1102
        }
1103
38
        s->slice_context_count = nb_slices;
1104
    }
1105
1106
38
    return 0;
1107
}
1108
1109
/* init common structure for both encoder and decoder */
1110
784
void ff_mpv_common_end(MpegEncContext *s)
1111
{
1112
    int i;
1113
1114
784
    if (!s)
1115
        return;
1116
1117
784
    if (s->slice_context_count > 1) {
1118
66
        for (i = 0; i < s->slice_context_count; i++) {
1119
51
            free_duplicate_context(s->thread_context[i]);
1120
        }
1121
51
        for (i = 1; i < s->slice_context_count; i++) {
1122
36
            av_freep(&s->thread_context[i]);
1123
        }
1124
15
        s->slice_context_count = 1;
1125
769
    } else free_duplicate_context(s);
1126
1127
784
    av_freep(&s->parse_context.buffer);
1128
784
    s->parse_context.buffer_size = 0;
1129
1130
784
    av_freep(&s->bitstream_buffer);
1131
784
    s->allocated_bitstream_buffer_size = 0;
1132
1133
784
    if (!s->avctx)
1134
        return;
1135
1136
784
    if (s->picture) {
1137
27750
        for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1138
27000
            ff_free_picture_tables(&s->picture[i]);
1139
27000
            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1140
27000
            av_frame_free(&s->picture[i].f);
1141
        }
1142
    }
1143
784
    av_freep(&s->picture);
1144
784
    ff_free_picture_tables(&s->last_picture);
1145
784
    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1146
784
    av_frame_free(&s->last_picture.f);
1147
784
    ff_free_picture_tables(&s->current_picture);
1148
784
    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1149
784
    av_frame_free(&s->current_picture.f);
1150
784
    ff_free_picture_tables(&s->next_picture);
1151
784
    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1152
784
    av_frame_free(&s->next_picture.f);
1153
784
    ff_free_picture_tables(&s->new_picture);
1154
784
    ff_mpeg_unref_picture(s->avctx, &s->new_picture);
1155
784
    av_frame_free(&s->new_picture.f);
1156
1157
784
    free_context_frame(s);
1158
1159
784
    s->context_initialized      = 0;
1160
784
    s->last_picture_ptr         =
1161
784
    s->next_picture_ptr         =
1162
784
    s->current_picture_ptr      = NULL;
1163
784
    s->linesize = s->uvlinesize = 0;
1164
}
1165
1166
1167
static void gray_frame(AVFrame *frame)
1168
{
1169
    int i, h_chroma_shift, v_chroma_shift;
1170
1171
    av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
1172
1173
    for(i=0; i<frame->height; i++)
1174
        memset(frame->data[0] + frame->linesize[0]*i, 0x80, frame->width);
1175
    for(i=0; i<AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
1176
        memset(frame->data[1] + frame->linesize[1]*i,
1177
               0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1178
        memset(frame->data[2] + frame->linesize[2]*i,
1179
               0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
1180
    }
1181
}
1182
1183
/**
1184
 * generic function called after decoding
1185
 * the header and before a frame is decoded.
1186
 */
1187
10844
int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1188
{
1189
    int i, ret;
1190
    Picture *pic;
1191
10844
    s->mb_skipped = 0;
1192
1193
10844
    if (!ff_thread_can_start_frame(avctx)) {
1194
        av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
1195
        return -1;
1196
    }
1197
1198
    /* mark & release old frames */
1199

10844
    if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1200
7864
        s->last_picture_ptr != s->next_picture_ptr &&
1201
7864
        s->last_picture_ptr->f->buf[0]) {
1202
7864
        ff_mpeg_unref_picture(s->avctx, s->last_picture_ptr);
1203
    }
1204
1205
    /* release forgotten pictures */
1206
    /* if (MPEG-124 / H.263) */
1207
401228
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1208
390384
        if (&s->picture[i] != s->last_picture_ptr &&
1209
380042
            &s->picture[i] != s->next_picture_ptr &&
1210

369494
            s->picture[i].reference && !s->picture[i].needs_realloc) {
1211
            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1212
        }
1213
    }
1214
1215
10844
    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
1216
10844
    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
1217
10844
    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
1218
1219
    /* release non reference frames */
1220
401228
    for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1221
390384
        if (!s->picture[i].reference)
1222
377338
            ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
1223
    }
1224
1225

10844
    if (s->current_picture_ptr && !s->current_picture_ptr->f->buf[0]) {
1226
        // we already have an unused image
1227
        // (maybe it was set before reading the header)
1228
5995
        pic = s->current_picture_ptr;
1229
    } else {
1230
4849
        i   = ff_find_unused_picture(s->avctx, s->picture, 0);
1231
4849
        if (i < 0) {
1232
            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1233
            return i;
1234
        }
1235
4849
        pic = &s->picture[i];
1236
    }
1237
1238
10844
    pic->reference = 0;
1239
10844
    if (!s->droppable) {
1240
10844
        if (s->pict_type != AV_PICTURE_TYPE_B)
1241
8366
            pic->reference = 3;
1242
    }
1243
1244
10844
    pic->f->coded_picture_number = s->coded_picture_number++;
1245
1246
10844
    if (alloc_picture(s, pic) < 0)
1247
        return -1;
1248
1249
10844
    s->current_picture_ptr = pic;
1250
    // FIXME use only the vars from current_pic
1251
10844
    s->current_picture_ptr->f->top_field_first = s->top_field_first;
1252
10844
    if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1253
10364
        s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1254
3487
        if (s->picture_structure != PICT_FRAME)
1255
602
            s->current_picture_ptr->f->top_field_first =
1256
602
                (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1257
    }
1258
12746
    s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame &&
1259
1902
                                                 !s->progressive_sequence;
1260
10844
    s->current_picture_ptr->field_picture      =  s->picture_structure != PICT_FRAME;
1261
1262
10844
    s->current_picture_ptr->f->pict_type = s->pict_type;
1263
    // if (s->avctx->flags && AV_CODEC_FLAG_QSCALE)
1264
    //     s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1265
10844
    s->current_picture_ptr->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1266
1267
10844
    if ((ret = ff_mpeg_ref_picture(s->avctx, &s->current_picture,
1268
                                   s->current_picture_ptr)) < 0)
1269
        return ret;
1270
1271
10844
    if (s->pict_type != AV_PICTURE_TYPE_B) {
1272
8366
        s->last_picture_ptr = s->next_picture_ptr;
1273
8366
        if (!s->droppable)
1274
8366
            s->next_picture_ptr = s->current_picture_ptr;
1275
    }
1276
    ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1277
            s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1278
            s->last_picture_ptr    ? s->last_picture_ptr->f->data[0]    : NULL,
1279
            s->next_picture_ptr    ? s->next_picture_ptr->f->data[0]    : NULL,
1280
            s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL,
1281
            s->pict_type, s->droppable);
1282
1283

10844
    if ((!s->last_picture_ptr || !s->last_picture_ptr->f->buf[0]) &&
1284
296
        (s->pict_type != AV_PICTURE_TYPE_I)) {
1285
        int h_chroma_shift, v_chroma_shift;
1286
6
        av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1287
                                         &h_chroma_shift, &v_chroma_shift);
1288

6
        if (s->pict_type == AV_PICTURE_TYPE_B && s->next_picture_ptr && s->next_picture_ptr->f->buf[0])
1289
            av_log(avctx, AV_LOG_DEBUG,
1290
                   "allocating dummy last picture for B frame\n");
1291
6
        else if (s->pict_type != AV_PICTURE_TYPE_I)
1292
6
            av_log(avctx, AV_LOG_ERROR,
1293
                   "warning: first frame is no keyframe\n");
1294
1295
        /* Allocate a dummy frame */
1296
6
        i = ff_find_unused_picture(s->avctx, s->picture, 0);
1297
6
        if (i < 0) {
1298
            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1299
            return i;
1300
        }
1301
6
        s->last_picture_ptr = &s->picture[i];
1302
1303
6
        s->last_picture_ptr->reference   = 3;
1304
6
        s->last_picture_ptr->f->key_frame = 0;
1305
6
        s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1306
1307
6
        if (alloc_picture(s, s->last_picture_ptr) < 0) {
1308
            s->last_picture_ptr = NULL;
1309
            return -1;
1310
        }
1311
1312
6
        if (!avctx->hwaccel) {
1313
1734
            for(i=0; i<avctx->height; i++)
1314
1728
                memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i,
1315
1728
                       0x80, avctx->width);
1316
6
            if (s->last_picture_ptr->f->data[2]) {
1317
870
                for(i=0; i<AV_CEIL_RSHIFT(avctx->height, v_chroma_shift); i++) {
1318
864
                    memset(s->last_picture_ptr->f->data[1] + s->last_picture_ptr->f->linesize[1]*i,
1319
864
                        0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1320
864
                    memset(s->last_picture_ptr->f->data[2] + s->last_picture_ptr->f->linesize[2]*i,
1321
864
                        0x80, AV_CEIL_RSHIFT(avctx->width, h_chroma_shift));
1322
                }
1323
            }
1324
1325

6
            if(s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263){
1326
                for(i=0; i<avctx->height; i++)
1327
                memset(s->last_picture_ptr->f->data[0] + s->last_picture_ptr->f->linesize[0]*i, 16, avctx->width);
1328
            }
1329
        }
1330
1331
6
        ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1332
6
        ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1333
    }
1334

10844
    if ((!s->next_picture_ptr || !s->next_picture_ptr->f->buf[0]) &&
1335
        s->pict_type == AV_PICTURE_TYPE_B) {
1336
        /* Allocate a dummy frame */
1337
        i = ff_find_unused_picture(s->avctx, s->picture, 0);
1338
        if (i < 0) {
1339
            av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1340
            return i;
1341
        }
1342
        s->next_picture_ptr = &s->picture[i];
1343
1344
        s->next_picture_ptr->reference   = 3;
1345
        s->next_picture_ptr->f->key_frame = 0;
1346
        s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_P;
1347
1348
        if (alloc_picture(s, s->next_picture_ptr) < 0) {
1349
            s->next_picture_ptr = NULL;
1350
            return -1;
1351
        }
1352
        ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1353
        ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1354
    }
1355
1356
#if 0 // BUFREF-FIXME
1357
    memset(s->last_picture.f->data, 0, sizeof(s->last_picture.f->data));
1358
    memset(s->next_picture.f->data, 0, sizeof(s->next_picture.f->data));
1359
#endif
1360
10844
    if (s->last_picture_ptr) {
1361

21108
        if (s->last_picture_ptr->f->buf[0] &&
1362
10554
            (ret = ff_mpeg_ref_picture(s->avctx, &s->last_picture,
1363
                                       s->last_picture_ptr)) < 0)
1364
            return ret;
1365
    }
1366
10844
    if (s->next_picture_ptr) {
1367

21688
        if (s->next_picture_ptr->f->buf[0] &&
1368
10844
            (ret = ff_mpeg_ref_picture(s->avctx, &s->next_picture,
1369
                                       s->next_picture_ptr)) < 0)
1370
            return ret;
1371
    }
1372
1373

10844
    av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_picture_ptr &&
1374
                                                 s->last_picture_ptr->f->buf[0]));
1375
1376
10844
    if (s->picture_structure!= PICT_FRAME) {
1377
        int i;
1378
3010
        for (i = 0; i < 4; i++) {
1379
2408
            if (s->picture_structure == PICT_BOTTOM_FIELD) {
1380
2404
                s->current_picture.f->data[i] +=
1381
2404
                    s->current_picture.f->linesize[i];
1382
            }
1383
2408
            s->current_picture.f->linesize[i] *= 2;
1384
2408
            s->last_picture.f->linesize[i]    *= 2;
1385
2408
            s->next_picture.f->linesize[i]    *= 2;
1386
        }
1387
    }
1388
1389
    /* set dequantizer, we can't do it during init as
1390
     * it might change for MPEG-4 and we can't do it in the header
1391
     * decode as init is not called for MPEG-4 there yet */
1392

10844
    if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1393
3047
        s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1394
3047
        s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1395

7797
    } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1396
7317
        s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1397
7317
        s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1398
    } else {
1399
480
        s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1400
480
        s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1401
    }
1402
1403
10844
    if (s->avctx->debug & FF_DEBUG_NOMC) {
1404
        gray_frame(s->current_picture_ptr->f);
1405
    }
1406
1407
10844
    return 0;
1408
}
1409
1410
/* called after a frame has been decoded. */
1411
10844
void ff_mpv_frame_end(MpegEncContext *s)
1412
{
1413
10844
    emms_c();
1414
1415
10844
    if (s->current_picture.reference)
1416
8366
        ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1417
10844
}
1418
1419
10661
void ff_print_debug_info(MpegEncContext *s, Picture *p, AVFrame *pict)
1420
{
1421
10661
    ff_print_debug_info2(s->avctx, pict, s->mbskip_table, p->mb_type,
1422
10661
                         p->qscale_table, p->motion_val, &s->low_delay,
1423
                         s->mb_width, s->mb_height, s->mb_stride, s->quarter_sample);
1424
10661
}
1425
1426
9893
int ff_mpv_export_qp_table(MpegEncContext *s, AVFrame *f, Picture *p, int qp_type)
1427
{
1428
9893
    AVBufferRef *ref = av_buffer_ref(p->qscale_table_buf);
1429
9893
    int offset = 2*s->mb_stride + 1;
1430
9893
    if(!ref)
1431
        return AVERROR(ENOMEM);
1432
9893
    av_assert0(ref->size >= offset + s->mb_stride * ((f->height+15)/16));
1433
9893
    ref->size -= offset;
1434
9893
    ref->data += offset;
1435
9893
    return av_frame_set_qp_table(f, ref, s->mb_stride, qp_type);
1436
}
1437
1438
126300
static inline int hpel_motion_lowres(MpegEncContext *s,
1439
                                     uint8_t *dest, uint8_t *src,
1440
                                     int field_based, int field_select,
1441
                                     int src_x, int src_y,
1442
                                     int width, int height, ptrdiff_t stride,
1443
                                     int h_edge_pos, int v_edge_pos,
1444
                                     int w, int h, h264_chroma_mc_func *pix_op,
1445
                                     int motion_x, int motion_y)
1446
{
1447
126300
    const int lowres   = s->avctx->lowres;
1448
126300
    const int op_index = FFMIN(lowres, 3);
1449
126300
    const int s_mask   = (2 << lowres) - 1;
1450
126300
    int emu = 0;
1451
    int sx, sy;
1452
1453
126300
    if (s->quarter_sample) {
1454
        motion_x /= 2;
1455
        motion_y /= 2;
1456
    }
1457
1458
126300
    sx = motion_x & s_mask;
1459
126300
    sy = motion_y & s_mask;
1460
126300
    src_x += motion_x >> lowres + 1;
1461
126300
    src_y += motion_y >> lowres + 1;
1462
1463
126300
    src   += src_y * stride + src_x;
1464
1465
126300
    if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w,                 0) ||
1466
126300
        (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1467
298
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
1468
                                 s->linesize, s->linesize,
1469
298
                                 w + 1, (h + 1) << field_based,
1470
                                 src_x, src_y   << field_based,
1471
                                 h_edge_pos, v_edge_pos);
1472
298
        src = s->sc.edge_emu_buffer;
1473
298
        emu = 1;
1474
    }
1475
1476
126300
    sx = (sx << 2) >> lowres;
1477
126300
    sy = (sy << 2) >> lowres;
1478
126300
    if (field_select)
1479
        src += s->linesize;
1480
126300
    pix_op[op_index](dest, src, stride, h, sx, sy);
1481
126300
    return emu;
1482
}
1483
1484
/* apply one mpeg motion vector to the three components */
1485
24814
static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
1486
                                                uint8_t *dest_y,
1487
                                                uint8_t *dest_cb,
1488
                                                uint8_t *dest_cr,
1489
                                                int field_based,
1490
                                                int bottom_field,
1491
                                                int field_select,
1492
                                                uint8_t **ref_picture,
1493
                                                h264_chroma_mc_func *pix_op,
1494
                                                int motion_x, int motion_y,
1495
                                                int h, int mb_y)
1496
{
1497
    uint8_t *ptr_y, *ptr_cb, *ptr_cr;
1498
    int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
1499
    ptrdiff_t uvlinesize, linesize;
1500
24814
    const int lowres     = s->avctx->lowres;
1501
24814
    const int op_index   = FFMIN(lowres-1+s->chroma_x_shift, 3);
1502
24814
    const int block_s    = 8>>lowres;
1503
24814
    const int s_mask     = (2 << lowres) - 1;
1504
24814
    const int h_edge_pos = s->h_edge_pos >> lowres;
1505
24814
    const int v_edge_pos = s->v_edge_pos >> lowres;
1506
24814
    linesize   = s->current_picture.f->linesize[0] << field_based;
1507
24814
    uvlinesize = s->current_picture.f->linesize[1] << field_based;
1508
1509
    // FIXME obviously not perfect but qpel will not work in lowres anyway
1510
24814
    if (s->quarter_sample) {
1511
        motion_x /= 2;
1512
        motion_y /= 2;
1513
    }
1514
1515
24814
    if(field_based){
1516
        motion_y += (bottom_field - field_select)*((1 << lowres)-1);
1517
    }
1518
1519
24814
    sx = motion_x & s_mask;
1520
24814
    sy = motion_y & s_mask;
1521
24814
    src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
1522
24814
    src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
1523
1524
24814
    if (s->out_format == FMT_H263) {
1525
24814
        uvsx    = ((motion_x >> 1) & s_mask) | (sx & 1);
1526
24814
        uvsy    = ((motion_y >> 1) & s_mask) | (sy & 1);
1527
24814
        uvsrc_x = src_x >> 1;
1528
24814
        uvsrc_y = src_y >> 1;
1529
    } else if (s->out_format == FMT_H261) {
1530
        // even chroma mv's are full pel in H261
1531
        mx      = motion_x / 4;
1532
        my      = motion_y / 4;
1533
        uvsx    = (2 * mx) & s_mask;
1534
        uvsy    = (2 * my) & s_mask;
1535
        uvsrc_x = s->mb_x * block_s + (mx >> lowres);
1536
        uvsrc_y =    mb_y * block_s + (my >> lowres);
1537
    } else {
1538
        if(s->chroma_y_shift){
1539
            mx      = motion_x / 2;
1540
            my      = motion_y / 2;
1541
            uvsx    = mx & s_mask;
1542
            uvsy    = my & s_mask;
1543
            uvsrc_x = s->mb_x * block_s                 + (mx >> lowres + 1);
1544
            uvsrc_y =   (mb_y * block_s >> field_based) + (my >> lowres + 1);
1545
        } else {
1546
            if(s->chroma_x_shift){
1547
            //Chroma422
1548
                mx = motion_x / 2;
1549
                uvsx = mx & s_mask;
1550
                uvsy = motion_y & s_mask;
1551
                uvsrc_y = src_y;
1552
                uvsrc_x = s->mb_x*block_s               + (mx >> (lowres+1));
1553
            } else {
1554
            //Chroma444
1555
                uvsx = motion_x & s_mask;
1556
                uvsy = motion_y & s_mask;
1557
                uvsrc_x = src_x;
1558
                uvsrc_y = src_y;
1559
            }
1560
        }
1561
    }
1562
1563
24814
    ptr_y  = ref_picture[0] + src_y   * linesize   + src_x;
1564
24814
    ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
1565
24814
    ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
1566
1567

24814
    if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s,       0) || uvsrc_y<0 ||
1568
24712
        (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
1569
197
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
1570
                                 linesize >> field_based, linesize >> field_based,
1571
                                 17, 17 + field_based,
1572
                                src_x, src_y << field_based, h_edge_pos,
1573
                                v_edge_pos);
1574
197
        ptr_y = s->sc.edge_emu_buffer;
1575
        if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1576
197
            uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
1577
197
            uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
1578
197
            if (s->workaround_bugs & FF_BUG_IEDGE)
1579
                vbuf -= s->uvlinesize;
1580
197
            s->vdsp.emulated_edge_mc(ubuf,  ptr_cb,
1581
                                     uvlinesize >> field_based, uvlinesize >> field_based,
1582
                                     9, 9 + field_based,
1583
                                    uvsrc_x, uvsrc_y << field_based,
1584
                                    h_edge_pos >> 1, v_edge_pos >> 1);
1585
197
            s->vdsp.emulated_edge_mc(vbuf,  ptr_cr,
1586
                                     uvlinesize >> field_based,uvlinesize >> field_based,
1587
                                     9, 9 + field_based,
1588
                                    uvsrc_x, uvsrc_y << field_based,
1589
                                    h_edge_pos >> 1, v_edge_pos >> 1);
1590
197
            ptr_cb = ubuf;
1591
197
            ptr_cr = vbuf;
1592
        }
1593
    }
1594
1595
    // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
1596
24814
    if (bottom_field) {
1597
        dest_y  += s->linesize;
1598
        dest_cb += s->uvlinesize;
1599
        dest_cr += s->uvlinesize;
1600
    }
1601
1602
24814
    if (field_select) {
1603
        ptr_y   += s->linesize;
1604
        ptr_cb  += s->uvlinesize;
1605
        ptr_cr  += s->uvlinesize;
1606
    }
1607
1608
24814
    sx = (sx << 2) >> lowres;
1609
24814
    sy = (sy << 2) >> lowres;
1610
24814
    pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
1611
1612
    if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1613
24814
        int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
1614
24814
        uvsx = (uvsx << 2) >> lowres;
1615
24814
        uvsy = (uvsy << 2) >> lowres;
1616
24814
        if (hc) {
1617
24814
            pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
1618
24814
            pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
1619
        }
1620
    }
1621
    // FIXME h261 lowres loop filter
1622
24814
}
1623
1624
31575
static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
1625
                                            uint8_t *dest_cb, uint8_t *dest_cr,
1626
                                            uint8_t **ref_picture,
1627
                                            h264_chroma_mc_func * pix_op,
1628
                                            int mx, int my)
1629
{
1630
31575
    const int lowres     = s->avctx->lowres;
1631
31575
    const int op_index   = FFMIN(lowres, 3);
1632
31575
    const int block_s    = 8 >> lowres;
1633
31575
    const int s_mask     = (2 << lowres) - 1;
1634
31575
    const int h_edge_pos = s->h_edge_pos >> lowres + 1;
1635
31575
    const int v_edge_pos = s->v_edge_pos >> lowres + 1;
1636
31575
    int emu = 0, src_x, src_y, sx, sy;
1637
    ptrdiff_t offset;
1638
    uint8_t *ptr;
1639
1640
31575
    if (s->quarter_sample) {
1641
        mx /= 2;
1642
        my /= 2;
1643
    }
1644
1645
    /* In case of 8X8, we construct a single chroma motion vector
1646
       with a special rounding */
1647
31575
    mx = ff_h263_round_chroma(mx);
1648
31575
    my = ff_h263_round_chroma(my);
1649
1650
31575
    sx = mx & s_mask;
1651
31575
    sy = my & s_mask;
1652
31575
    src_x = s->mb_x * block_s + (mx >> lowres + 1);
1653
31575
    src_y = s->mb_y * block_s + (my >> lowres + 1);
1654
1655
31575
    offset = src_y * s->uvlinesize + src_x;
1656
31575
    ptr = ref_picture[1] + offset;
1657
31575
    if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
1658
31575
        (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
1659
144
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1660
                                 s->uvlinesize, s->uvlinesize,
1661
                                 9, 9,
1662
                                 src_x, src_y, h_edge_pos, v_edge_pos);
1663
144
        ptr = s->sc.edge_emu_buffer;
1664
144
        emu = 1;
1665
    }
1666
31575
    sx = (sx << 2) >> lowres;
1667
31575
    sy = (sy << 2) >> lowres;
1668
31575
    pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
1669
1670
31575
    ptr = ref_picture[2] + offset;
1671
31575
    if (emu) {
1672
144
        s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
1673
                                 s->uvlinesize, s->uvlinesize,
1674
                                 9, 9,
1675
                                 src_x, src_y, h_edge_pos, v_edge_pos);
1676
144
        ptr = s->sc.edge_emu_buffer;
1677
    }
1678
31575
    pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
1679
31575
}
1680
1681
/**
1682
 * motion compensation of a single macroblock
1683
 * @param s context
1684
 * @param dest_y luma destination pointer
1685
 * @param dest_cb chroma cb/u destination pointer
1686
 * @param dest_cr chroma cr/v destination pointer
1687
 * @param dir direction (0->forward, 1->backward)
1688
 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
1689
 * @param pix_op halfpel motion compensation function (average or put normally)
1690
 * the motion vectors are taken from s->mv and the MV type from s->mv_type
1691
 */
1692
56389
static inline void MPV_motion_lowres(MpegEncContext *s,
1693
                                     uint8_t *dest_y, uint8_t *dest_cb,
1694
                                     uint8_t *dest_cr,
1695
                                     int dir, uint8_t **ref_picture,
1696
                                     h264_chroma_mc_func *pix_op)
1697
{
1698
    int mx, my;
1699
    int mb_x, mb_y, i;
1700
56389
    const int lowres  = s->avctx->lowres;
1701
56389
    const int block_s = 8 >>lowres;
1702
1703
56389
    mb_x = s->mb_x;
1704
56389
    mb_y = s->mb_y;
1705
1706

56389
    switch (s->mv_type) {
1707
24814
    case MV_TYPE_16X16:
1708
24814
        mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1709
                           0, 0, 0,
1710
                           ref_picture, pix_op,
1711
                           s->mv[dir][0][0], s->mv[dir][0][1],
1712
                           2 * block_s, mb_y);
1713
24814
        break;
1714
31575
    case MV_TYPE_8X8:
1715
31575
        mx = 0;
1716
31575
        my = 0;
1717
157875
        for (i = 0; i < 4; i++) {
1718
126300
            hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
1719
126300
                               s->linesize) * block_s,
1720
                               ref_picture[0], 0, 0,
1721
126300
                               (2 * mb_x + (i & 1)) * block_s,
1722
126300
                               (2 * mb_y + (i >> 1)) * block_s,
1723
                               s->width, s->height, s->linesize,
1724
126300
                               s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
1725
                               block_s, block_s, pix_op,
1726
                               s->mv[dir][i][0], s->mv[dir][i][1]);
1727
1728
126300
            mx += s->mv[dir][i][0];
1729
126300
            my += s->mv[dir][i][1];
1730
        }
1731
1732
        if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
1733
31575
            chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
1734
                                     pix_op, mx, my);
1735
31575
        break;
1736
    case MV_TYPE_FIELD:
1737
        if (s->picture_structure == PICT_FRAME) {
1738
            /* top field */
1739
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1740
                               1, 0, s->field_select[dir][0],
1741
                               ref_picture, pix_op,
1742
                               s->mv[dir][0][0], s->mv[dir][0][1],
1743
                               block_s, mb_y);
1744
            /* bottom field */
1745
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1746
                               1, 1, s->field_select[dir][1],
1747
                               ref_picture, pix_op,
1748
                               s->mv[dir][1][0], s->mv[dir][1][1],
1749
                               block_s, mb_y);
1750
        } else {
1751
            if (s->picture_structure != s->field_select[dir][0] + 1 &&
1752
                s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
1753
                ref_picture = s->current_picture_ptr->f->data;
1754
1755
            }
1756
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1757
                               0, 0, s->field_select[dir][0],
1758
                               ref_picture, pix_op,
1759
                               s->mv[dir][0][0],
1760
                               s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
1761
            }
1762
        break;
1763
    case MV_TYPE_16X8:
1764
        for (i = 0; i < 2; i++) {
1765
            uint8_t **ref2picture;
1766
1767
            if (s->picture_structure == s->field_select[dir][i] + 1 ||
1768
                s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
1769
                ref2picture = ref_picture;
1770
            } else {
1771
                ref2picture = s->current_picture_ptr->f->data;
1772
            }
1773
1774
            mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1775
                               0, 0, s->field_select[dir][i],
1776
                               ref2picture, pix_op,
1777
                               s->mv[dir][i][0], s->mv[dir][i][1] +
1778
                               2 * block_s * i, block_s, mb_y >> 1);
1779
1780
            dest_y  +=  2 * block_s *  s->linesize;
1781
            dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1782
            dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
1783
        }
1784
        break;
1785
    case MV_TYPE_DMV:
1786
        if (s->picture_structure == PICT_FRAME) {
1787
            for (i = 0; i < 2; i++) {
1788
                int j;
1789
                for (j = 0; j < 2; j++) {
1790
                    mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1791
                                       1, j, j ^ i,
1792
                                       ref_picture, pix_op,
1793
                                       s->mv[dir][2 * i + j][0],
1794
                                       s->mv[dir][2 * i + j][1],
1795
                                       block_s, mb_y);
1796
                }
1797
                pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1798
            }
1799
        } else {
1800
            for (i = 0; i < 2; i++) {
1801
                mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
1802
                                   0, 0, s->picture_structure != i + 1,
1803
                                   ref_picture, pix_op,
1804
                                   s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
1805
                                   2 * block_s, mb_y >> 1);
1806
1807
                // after put we make avg of the same block
1808
                pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
1809
1810
                // opposite parity is always in the same
1811
                // frame if this is second field
1812
                if (!s->first_field) {
1813
                    ref_picture = s->current_picture_ptr->f->data;
1814
                }
1815
            }
1816
        }
1817
        break;
1818
56389
    default:
1819
        av_assert2(0);
1820
    }
1821
56389
}
1822
1823
/**
1824
 * find the lowest MB row referenced in the MVs
1825
 */
1826
static int lowest_referenced_row(MpegEncContext *s, int dir)
1827
{
1828
    int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1829
    int my, off, i, mvs;
1830
1831
    if (s->picture_structure != PICT_FRAME || s->mcsel)
1832
        goto unhandled;
1833
1834
    switch (s->mv_type) {
1835
        case MV_TYPE_16X16:
1836
            mvs = 1;
1837
            break;
1838
        case MV_TYPE_16X8:
1839
            mvs = 2;
1840
            break;
1841
        case MV_TYPE_8X8:
1842
            mvs = 4;
1843
            break;
1844
        default:
1845
            goto unhandled;
1846
    }
1847
1848
    for (i = 0; i < mvs; i++) {
1849
        my = s->mv[dir][i][1];
1850
        my_max = FFMAX(my_max, my);
1851
        my_min = FFMIN(my_min, my);
1852
    }
1853
1854
    off = ((FFMAX(-my_min, my_max)<<qpel_shift) + 63) >> 6;
1855
1856
    return av_clip(s->mb_y + off, 0, s->mb_height - 1);
1857
unhandled:
1858
    return s->mb_height-1;
1859
}
1860
1861
/* put block[] to dest[] */
1862
4710380
static inline void put_dct(MpegEncContext *s,
1863
                           int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1864
{
1865
4710380
    s->dct_unquantize_intra(s, block, i, qscale);
1866
4710380
    s->idsp.idct_put(dest, line_size, block);
1867
4710380
}
1868
1869
/* add block[] to dest[] */
1870
19397348
static inline void add_dct(MpegEncContext *s,
1871
                           int16_t *block, int i, uint8_t *dest, int line_size)
1872
{
1873
19397348
    if (s->block_last_index[i] >= 0) {
1874
7073928
        s->idsp.idct_add(dest, line_size, block);
1875
    }
1876
19397348
}
1877
1878
21854390
static inline void add_dequant_dct(MpegEncContext *s,
1879
                           int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1880
{
1881
21854390
    if (s->block_last_index[i] >= 0) {
1882
9051961
        s->dct_unquantize_inter(s, block, i, qscale);
1883
1884
9051961
        s->idsp.idct_add(dest, line_size, block);
1885
    }
1886
21854390
}
1887
1888
/**
1889
 * Clean dc, ac, coded_block for the current non-intra MB.
1890
 */
1891
385434
void ff_clean_intra_table_entries(MpegEncContext *s)
1892
{
1893
385434
    int wrap = s->b8_stride;
1894
385434
    int xy = s->block_index[0];
1895
1896
385434
    s->dc_val[0][xy           ] =
1897
385434
    s->dc_val[0][xy + 1       ] =
1898
385434
    s->dc_val[0][xy     + wrap] =
1899
385434
    s->dc_val[0][xy + 1 + wrap] = 1024;
1900
    /* ac pred */
1901
385434
    memset(s->ac_val[0][xy       ], 0, 32 * sizeof(int16_t));
1902
385434
    memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1903
385434
    if (s->msmpeg4_version>=3) {
1904
45701
        s->coded_block[xy           ] =
1905
45701
        s->coded_block[xy + 1       ] =
1906
45701
        s->coded_block[xy     + wrap] =
1907
45701
        s->coded_block[xy + 1 + wrap] = 0;
1908
    }
1909
    /* chroma */
1910
385434
    wrap = s->mb_stride;
1911
385434
    xy = s->mb_x + s->mb_y * wrap;
1912
385434
    s->dc_val[1][xy] =
1913
385434
    s->dc_val[2][xy] = 1024;
1914
    /* ac pred */
1915
385434
    memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1916
385434
    memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1917
1918
385434
    s->mbintra_table[xy]= 0;
1919
385434
}
1920
1921
/* generic function called after a macroblock has been parsed by the
1922
   decoder or after it has been encoded by the encoder.
1923
1924
   Important variables used:
1925
   s->mb_intra : true if intra macroblock
1926
   s->mv_dir   : motion vector direction
1927
   s->mv_type  : motion vector type
1928
   s->mv       : motion vector
1929
   s->interlaced_dct : true if interlaced dct used (mpeg2)
1930
 */
1931
static av_always_inline
1932
8880295
void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
1933
                            int lowres_flag, int is_mpeg12)
1934
{
1935
8880295
    const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1936
1937
    if (CONFIG_XVMC &&
1938
        s->avctx->hwaccel && s->avctx->hwaccel->decode_mb) {
1939
        s->avctx->hwaccel->decode_mb(s);//xvmc uses pblocks
1940
        return;
1941
    }
1942
1943
8880295
    if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1944
       /* print DCT coefficients */
1945
       int i,j;
1946
       av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1947
       for(i=0; i<6; i++){
1948
           for(j=0; j<64; j++){
1949
               av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1950
                      block[i][s->idsp.idct_permutation[j]]);
1951
           }
1952
           av_log(s->avctx, AV_LOG_DEBUG, "\n");
1953
       }
1954
    }
1955
1956
8880295
    s->current_picture.qscale_table[mb_xy] = s->qscale;
1957
1958
    /* update DC predictors for P macroblocks */
1959
8880295
    if (!s->mb_intra) {
1960

7143833
        if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1961
3335185
            if(s->mbintra_table[mb_xy])
1962
307810
                ff_clean_intra_table_entries(s);
1963
        } else {
1964
3808648
            s->last_dc[0] =
1965
3808648
            s->last_dc[1] =
1966
3808648
            s->last_dc[2] = 128 << s->intra_dc_precision;
1967
        }
1968
    }
1969

1736462
    else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
1970
454235
        s->mbintra_table[mb_xy]=1;
1971
1972

8880295
    if ((s->avctx->flags & AV_CODEC_FLAG_PSNR) || s->frame_skip_threshold || s->frame_skip_factor ||
1973

8880295
        !(s->encoding && (s->intra_only || s->pict_type == AV_PICTURE_TYPE_B) &&
1974
1926989
          s->avctx->mb_decision != FF_MB_DECISION_RD)) { // FIXME precalc
1975
        uint8_t *dest_y, *dest_cb, *dest_cr;
1976
        int dct_linesize, dct_offset;
1977
        op_pixels_func (*op_pix)[4];
1978
        qpel_mc_func (*op_qpix)[16];
1979
7973101
        const int linesize   = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
1980
7973101
        const int uvlinesize = s->current_picture.f->linesize[1];
1981


7973101
        const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band || lowres_flag;
1982
7973101
        const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8;
1983
1984
        /* avoid copy if macroblock skipped in last frame too */
1985
        /* skip only during decoding as we might trash the buffers during encoding a bit */
1986
7973101
        if(!s->encoding){
1987
4552194
            uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
1988
1989
4552194
            if (s->mb_skipped) {
1990
322949
                s->mb_skipped= 0;
1991
                av_assert2(s->pict_type!=AV_PICTURE_TYPE_I);
1992
322949
                *mbskip_ptr = 1;
1993
4229245
            } else if(!s->current_picture.reference) {
1994
889827
                *mbskip_ptr = 1;
1995
            } else{
1996
3339418
                *mbskip_ptr = 0; /* not skipped */
1997
            }
1998
        }
1999
2000
7973101
        dct_linesize = linesize << s->interlaced_dct;
2001
7973101
        dct_offset   = s->interlaced_dct ? linesize : linesize * block_size;
2002
2003
7973101
        if(readable){
2004
6998610
            dest_y=  s->dest[0];
2005
6998610
            dest_cb= s->dest[1];
2006
6998610
            dest_cr= s->dest[2];
2007
        }else{
2008
974491
            dest_y = s->sc.b_scratchpad;
2009
974491
            dest_cb= s->sc.b_scratchpad+16*linesize;
2010
974491
            dest_cr= s->sc.b_scratchpad+32*linesize;
2011
        }
2012
2013
7973101
        if (!s->mb_intra) {
2014
            /* motion handling */
2015
            /* decoding or more than one mb_type (MC was already done otherwise) */
2016
6927137
            if(!s->encoding){
2017
2018
3974171
                if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
2019
                    if (s->mv_dir & MV_DIR_FORWARD) {
2020
                        ff_thread_await_progress(&s->last_picture_ptr->tf,
2021
                                                 lowest_referenced_row(s, 0),
2022
                                                 0);
2023
                    }
2024
                    if (s->mv_dir & MV_DIR_BACKWARD) {
2025
                        ff_thread_await_progress(&s->next_picture_ptr->tf,
2026
                                                 lowest_referenced_row(s, 1),
2027
                                                 0);
2028
                    }
2029
                }
2030
2031
3974171
                if(lowres_flag){
2032
41123
                    h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
2033
2034
41123
                    if (s->mv_dir & MV_DIR_FORWARD) {
2035
37429
                        MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix);
2036
37429
                        op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
2037
                    }
2038
41123
                    if (s->mv_dir & MV_DIR_BACKWARD) {
2039
18960
                        MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix);
2040
                    }
2041
                }else{
2042
3933048
                    op_qpix = s->me.qpel_put;
2043

3933048
                    if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
2044
3173305
                        op_pix = s->hdsp.put_pixels_tab;
2045
                    }else{
2046
759743
                        op_pix = s->hdsp.put_no_rnd_pixels_tab;
2047
                    }
2048
3933048
                    if (s->mv_dir & MV_DIR_FORWARD) {
2049
3700613
                        ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix);
2050
3700613
                        op_pix = s->hdsp.avg_pixels_tab;
2051
3700613
                        op_qpix= s->me.qpel_avg;
2052
                    }
2053
3933048
                    if (s->mv_dir & MV_DIR_BACKWARD) {
2054
757393
                        ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix);
2055
                    }
2056
                }
2057
            }
2058
2059
            /* skip dequant / idct if we are really late ;) */
2060
6927137
            if(s->avctx->skip_idct){
2061
                if(  (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2062
                   ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2063
                   || s->avctx->skip_idct >= AVDISCARD_ALL)
2064
                    goto skip_idct;
2065
            }
2066
2067
            /* add dct residue */
2068


6927137
            if(s->encoding || !(   s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2069

1820053
                                || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2070
3526530
                add_dequant_dct(s, block[0], 0, dest_y                          , dct_linesize, s->qscale);
2071
3526530
                add_dequant_dct(s, block[1], 1, dest_y              + block_size, dct_linesize, s->qscale);
2072
3526530
                add_dequant_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize, s->qscale);
2073
3526530
                add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2074
2075
3526530
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2076
3526530
                    if (s->chroma_y_shift){
2077
3178925
                        add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2078
3178925
                        add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2079
                    }else{
2080
347605
                        dct_linesize >>= 1;
2081
347605
                        dct_offset >>=1;
2082
347605
                        add_dequant_dct(s, block[4], 4, dest_cb,              dct_linesize, s->chroma_qscale);
2083
347605
                        add_dequant_dct(s, block[5], 5, dest_cr,              dct_linesize, s->chroma_qscale);
2084
347605
                        add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2085
347605
                        add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2086
                    }
2087
                }
2088

3400607
            } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2089
3210458
                add_dct(s, block[0], 0, dest_y                          , dct_linesize);
2090
3210458
                add_dct(s, block[1], 1, dest_y              + block_size, dct_linesize);
2091
3210458
                add_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize);
2092
3210458
                add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2093
2094
3210458
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2095
3210458
                    if(s->chroma_y_shift){//Chroma420
2096
3143158
                        add_dct(s, block[4], 4, dest_cb, uvlinesize);
2097
3143158
                        add_dct(s, block[5], 5, dest_cr, uvlinesize);
2098
                    }else{
2099
                        //chroma422
2100
67300
                        dct_linesize = uvlinesize << s->interlaced_dct;
2101
67300
                        dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2102
2103
67300
                        add_dct(s, block[4], 4, dest_cb, dct_linesize);
2104
67300
                        add_dct(s, block[5], 5, dest_cr, dct_linesize);
2105
67300
                        add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2106
67300
                        add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2107
67300
                        if(!s->chroma_x_shift){//Chroma444
2108
                            add_dct(s, block[8], 8, dest_cb+block_size, dct_linesize);
2109
                            add_dct(s, block[9], 9, dest_cr+block_size, dct_linesize);
2110
                            add_dct(s, block[10], 10, dest_cb+block_size+dct_offset, dct_linesize);
2111
                            add_dct(s, block[11], 11, dest_cr+block_size+dct_offset, dct_linesize);
2112
                        }
2113
                    }
2114
                }//fi gray
2115
            }
2116
            else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2117
190149
                ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2118
            }
2119
        } else {
2120
            /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
2121
               TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
2122
1045964
            if (s->avctx->bits_per_raw_sample > 8){
2123
                const int act_block_size = block_size * 2;
2124
2125
                if(s->dpcm_direction == 0) {
2126
                    s->idsp.idct_put(dest_y,                           dct_linesize, (int16_t*)(*s->block32)[0]);
2127
                    s->idsp.idct_put(dest_y              + act_block_size, dct_linesize, (int16_t*)(*s->block32)[1]);
2128
                    s->idsp.idct_put(dest_y + dct_offset,              dct_linesize, (int16_t*)(*s->block32)[2]);
2129
                    s->idsp.idct_put(dest_y + dct_offset + act_block_size, dct_linesize, (int16_t*)(*s->block32)[3]);
2130
2131
                    dct_linesize = uvlinesize << s->interlaced_dct;
2132
                    dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2133
2134
                    s->idsp.idct_put(dest_cb,              dct_linesize, (int16_t*)(*s->block32)[4]);
2135
                    s->idsp.idct_put(dest_cr,              dct_linesize, (int16_t*)(*s->block32)[5]);
2136
                    s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, (int16_t*)(*s->block32)[6]);
2137
                    s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, (int16_t*)(*s->block32)[7]);
2138
                    if(!s->chroma_x_shift){//Chroma444
2139
                        s->idsp.idct_put(dest_cb + act_block_size,              dct_linesize, (int16_t*)(*s->block32)[8]);
2140
                        s->idsp.idct_put(dest_cr + act_block_size,              dct_linesize, (int16_t*)(*s->block32)[9]);
2141
                        s->idsp.idct_put(dest_cb + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[10]);
2142
                        s->idsp.idct_put(dest_cr + act_block_size + dct_offset, dct_linesize, (int16_t*)(*s->block32)[11]);
2143
                    }
2144
                } else if(s->dpcm_direction == 1) {
2145
                    int i, w, h;
2146
                    uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2147
                    int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2148
                    for(i = 0; i < 3; i++) {
2149
                        int idx = 0;
2150
                        int vsub = i ? s->chroma_y_shift : 0;
2151
                        int hsub = i ? s->chroma_x_shift : 0;
2152
                        for(h = 0; h < (16 >> vsub); h++){
2153
                            for(w = 0; w < (16 >> hsub); w++)
2154
                                dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2155
                            dest_pcm[i] += linesize[i] / 2;
2156
                        }
2157
                    }
2158
                } else if(s->dpcm_direction == -1) {
2159
                    int i, w, h;
2160
                    uint16_t *dest_pcm[3] = {(uint16_t*)dest_y, (uint16_t*)dest_cb, (uint16_t*)dest_cr};
2161
                    int linesize[3] = {dct_linesize, uvlinesize, uvlinesize};
2162
                    for(i = 0; i < 3; i++) {
2163
                        int idx = 0;
2164
                        int vsub = i ? s->chroma_y_shift : 0;
2165
                        int hsub = i ? s->chroma_x_shift : 0;
2166
                        dest_pcm[i] += (linesize[i] / 2) * ((16 >> vsub) - 1);
2167
                        for(h = (16 >> vsub)-1; h >= 1; h--){
2168
                            for(w = (16 >> hsub)-1; w >= 1; w--)
2169
                                dest_pcm[i][w] = (*s->dpcm_macroblock)[i][idx++];
2170
                            dest_pcm[i] -= linesize[i] / 2;
2171
                        }
2172
                    }
2173
                }
2174
            }
2175
            /* dct only in intra block */
2176

1045964
            else if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2177
772060
                put_dct(s, block[0], 0, dest_y                          , dct_linesize, s->qscale);
2178
772060
                put_dct(s, block[1], 1, dest_y              + block_size, dct_linesize, s->qscale);
2179
772060
                put_dct(s, block[2], 2, dest_y + dct_offset             , dct_linesize, s->qscale);
2180
772060
                put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2181
2182
772060
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2183
772060
                    if(s->chroma_y_shift){
2184
733050
                        put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2185
733050
                        put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2186
                    }else{
2187
39010
                        dct_offset >>=1;
2188
39010
                        dct_linesize >>=1;
2189
39010
                        put_dct(s, block[4], 4, dest_cb,              dct_linesize, s->chroma_qscale);
2190
39010
                        put_dct(s, block[5], 5, dest_cr,              dct_linesize, s->chroma_qscale);
2191
39010
                        put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2192
39010
                        put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2193
                    }
2194
                }
2195
            }else{
2196
273904
                s->idsp.idct_put(dest_y,                           dct_linesize, block[0]);
2197
273904
                s->idsp.idct_put(dest_y              + block_size, dct_linesize, block[1]);
2198
273904
                s->idsp.idct_put(dest_y + dct_offset,              dct_linesize, block[2]);
2199
273904
                s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2200
2201
                if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2202
273904
                    if(s->chroma_y_shift){
2203
220094
                        s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
2204
220094
                        s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
2205
                    }else{
2206
2207
53810
                        dct_linesize = uvlinesize << s->interlaced_dct;
2208
53810
                        dct_offset   = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
2209
2210
53810
                        s->idsp.idct_put(dest_cb,              dct_linesize, block[4]);
2211
53810
                        s->idsp.idct_put(dest_cr,              dct_linesize, block[5]);
2212
53810
                        s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2213
53810
                        s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2214
53810
                        if(!s->chroma_x_shift){//Chroma444
2215
                            s->idsp.idct_put(dest_cb + block_size,              dct_linesize, block[8]);
2216
                            s->idsp.idct_put(dest_cr + block_size,              dct_linesize, block[9]);
2217
                            s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
2218
                            s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
2219
                        }
2220
                    }
2221
                }//gray
2222
            }
2223
        }
2224
53810
skip_idct:
2225
7973101
        if(!readable){
2226
974491
            s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y ,   linesize,16);
2227
            if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
2228
974491
                s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2229
974491
                s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2230
            }
2231
        }
2232
    }
2233
}
2234
2235
8880295
void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
2236
{
2237
#if !CONFIG_SMALL
2238
8880295
    if(s->out_format == FMT_MPEG1) {
2239
3627291
        if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 1);
2240
3627291
        else                 mpv_reconstruct_mb_internal(s, block, 0, 1);
2241
    } else
2242
#endif
2243
5253004
    if(s->avctx->lowres) mpv_reconstruct_mb_internal(s, block, 1, 0);
2244
5209504
    else                  mpv_reconstruct_mb_internal(s, block, 0, 0);
2245
8880295
}
2246
2247
167084
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2248
{
2249
167084
    ff_draw_horiz_band(s->avctx, s->current_picture_ptr->f,
2250
167084
                       s->last_picture_ptr ? s->last_picture_ptr->f : NULL, y, h, s->picture_structure,
2251
                       s->first_field, s->low_delay);
2252
167084
}
2253
2254
837156
void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2255
837156
    const int linesize   = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics
2256
837156
    const int uvlinesize = s->current_picture.f->linesize[1];
2257
837156
    const int width_of_mb = (4 + (s->avctx->bits_per_raw_sample > 8)) - s->avctx->lowres;
2258
837156
    const int height_of_mb = 4 - s->avctx->lowres;
2259
2260
837156
    s->block_index[0]= s->b8_stride*(s->mb_y*2    ) - 2 + s->mb_x*2;
2261
837156
    s->block_index[1]= s->b8_stride*(s->mb_y*2    ) - 1 + s->mb_x*2;
2262
837156
    s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2263
837156
    s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2264
837156
    s->block_index[4]= s->mb_stride*(s->mb_y + 1)                + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2265
837156
    s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2266
    //block_index is not used by mpeg2, so it is not affected by chroma_format
2267
2268
837156
    s->dest[0] = s->current_picture.f->data[0] + (int)((s->mb_x - 1U) <<  width_of_mb);
2269
837156
    s->dest[1] = s->current_picture.f->data[1] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2270
837156
    s->dest[2] = s->current_picture.f->data[2] + (int)((s->mb_x - 1U) << (width_of_mb - s->chroma_x_shift));
2271
2272

837156
    if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2273
    {
2274
837156
        if(s->picture_structure==PICT_FRAME){
2275
806376
        s->dest[0] += s->mb_y *   linesize << height_of_mb;
2276
806376
        s->dest[1] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2277
806376
        s->dest[2] += s->mb_y * uvlinesize << (height_of_mb - s->chroma_y_shift);
2278
        }else{
2279
30780
            s->dest[0] += (s->mb_y>>1) *   linesize << height_of_mb;
2280
30780
            s->dest[1] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2281
30780
            s->dest[2] += (s->mb_y>>1) * uvlinesize << (height_of_mb - s->chroma_y_shift);
2282
            av_assert1((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2283
        }
2284
    }
2285
837156
}
2286
2287
79
void ff_mpeg_flush(AVCodecContext *avctx){
2288
    int i;
2289
79
    MpegEncContext *s = avctx->priv_data;
2290
2291

79
    if (!s || !s->picture)
2292
        return;
2293
2294
2923
    for (i = 0; i < MAX_PICTURE_COUNT; i++)
2295
2844
        ff_mpeg_unref_picture(s->avctx, &s->picture[i]);
2296
79
    s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2297
2298
79
    ff_mpeg_unref_picture(s->avctx, &s->current_picture);
2299
79
    ff_mpeg_unref_picture(s->avctx, &s->last_picture);
2300
79
    ff_mpeg_unref_picture(s->avctx, &s->next_picture);
2301
2302
79
    s->mb_x= s->mb_y= 0;
2303
79
    s->closed_gop= 0;
2304
2305
79
    s->parse_context.state= -1;
2306
79
    s->parse_context.frame_start_found= 0;
2307
79
    s->parse_context.overread= 0;
2308
79
    s->parse_context.overread_index= 0;
2309
79
    s->parse_context.index= 0;
2310
79
    s->parse_context.last_index= 0;
2311
79
    s->bitstream_buffer_size=0;
2312
79
    s->pp_time=0;
2313
}
2314
2315
/**
2316
 * set qscale and update qscale dependent variables.
2317
 */
2318
1446073
void ff_set_qscale(MpegEncContext * s, int qscale)
2319
{
2320
1446073
    if (qscale < 1)
2321
        qscale = 1;
2322
1446073
    else if (qscale > 31)
2323
        qscale = 31;
2324
2325
1446073
    s->qscale = qscale;
2326
1446073
    s->chroma_qscale= s->chroma_qscale_table[qscale];
2327
2328
1446073
    s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2329
1446073
    s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2330
1446073
}
2331
2332
157316
void ff_mpv_report_decode_progress(MpegEncContext *s)
2333
{
2334

157316
    if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2335
116694
        ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
2336
157316
}